Multi-SIM 5G Terminal Gap Scheduling for Standby Network Switching
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Solution Overview
Problem
Terminals using multiple SIMs face challenges in receiving paging, system information, and PWS information from a second network, and struggle with TAU operations when reselecting cells in a different tracking area.
Innovation Solution
The terminal switches to a second network by transmitting periodic gap information to the first network's base station, receives gap configuration, and enters a standby mode to perform operations in the second network, temporarily stopping data transmission and reception with the first network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a terminal uses a plurality of SIMs to perform standby mode operations in a second network, then the terminal can receive paging and system information from the second network, but the terminal cannot maintain data transmission and reception with the first network simultaneously
Solution Approach 1:
The patent implements periodic switching between networks by configuring gap patterns that define specific time intervals when the terminal switches to the second network to perform standby operations, then returns to the first network for data transmission. This periodic action allows the terminal to maintain both multi-SIM capability and data transmission efficiency by allocating specific time slots for each network operation.
2Adaptability or versatility
If the terminal switches to a second network for standby mode operations, then the terminal can perform TAU operations in the second network, but the terminal experiences interruption in data transmission with the first network
Solution Approach 1:
The patent applies preliminary action by configuring gap patterns and standby operation parameters in advance before the terminal needs to switch networks. The base station pre-configures the terminal with gap pattern information indicating when switching to the second network will occur, allowing the terminal to prepare for network switching without interrupting ongoing data transmission. This eliminates the need for urgent network switching and reduces transmission delays.
3Adaptability or versatility
If the terminal performs standby mode operations in the second network, then the terminal can receive PWS information from the second network, but the terminal increases signaling overhead with the first network
Solution Approach 1:
The patent implements feedback mechanisms where the terminal reports its multi-SIM capability and gap pattern configuration status to the base station of the first network. The base station uses this feedback information to optimize resource allocation and adjust gap patterns, reducing unnecessary signaling overhead. The feedback loop ensures that the network is aware of the terminal's standby operations and can coordinate data transmission accordingly, minimizing redundant signaling.
Data Source
AI summary
The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transfer rate beyond the 4G system, and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security- and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology.